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Inverse Euler transform of A008409.
1

%I #14 Oct 23 2018 06:13:55

%S 0,4320,61440,-8810640,-263208960,22737197280,1104970014720,

%T -61319781714960,-4559126871265280,157589681950830816,

%U 18460588655551795200,-337394373951169867920,-73200715363477357608960,306095068890572836888800,283363485933298319434493952,2600519516007145850005282800

%N Inverse Euler transform of A008409.

%C a(n) is a multiple of 16.

%H Seiichi Manyama, <a href="/A320729/b320729.txt">Table of n, a(n) for n = 1..549</a>

%H N. J. A. Sloane, <a href="/transforms.txt">Transforms</a>

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/Barnes-WallLattice.html">Barnes-Wall Lattice</a>

%e 1 + 4320*q^2 + 61440*q^3 + 522720*q^4 + ... = (1-q^2)^(-4320) * (1-q^3)^(-61440) * (1-q^4)^8810640 * ... .

%Y Cf. A008409, A108094.

%K sign

%O 1,2

%A _Seiichi Manyama_, Oct 20 2018